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97007897 = 723163863
BaseRepresentation
bin1011100100000…
…11100100011001
320202112111211002
411302003210121
5144313223042
613343114345
72255360600
oct562034431
9222474732
1097007897
114a838518
12285a29b5
131713692c
14cc52a37
1587b3132
hex5c83919

97007897 has 12 divisors (see below), whose sum is σ = 116487936. Its totient is φ = 80466120.

The previous prime is 97007891. The next prime is 97007917. The reversal of 97007897 is 79870079.

It is not a de Polignac number, because 97007897 - 24 = 97007881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97007891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30413 + ... + 33450.

It is an arithmetic number, because the mean of its divisors is an integer number (9707328).

Almost surely, 297007897 is an apocalyptic number.

It is an amenable number.

97007897 is a deficient number, since it is larger than the sum of its proper divisors (19480039).

97007897 is a wasteful number, since it uses less digits than its factorization.

97007897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63908 (or 63901 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 47.

The square root of 97007897 is about 9849.2587030700. The cubic root of 97007897 is about 459.4825577322.

The spelling of 97007897 in words is "ninety-seven million, seven thousand, eight hundred ninety-seven".

Divisors: 1 7 31 49 217 1519 63863 447041 1979753 3129287 13858271 97007897